173 East 87 Street, Manhattan

A 1923 office building on East 87 Street with 10 open violations on record across city enforcement files.

173 East 87 Street is an office building in Manhattan, New York City (BBL 1015160030). The property is zoned C1-7, on a 5,035 sq ft lot, with 6 floors and 1 residential units. It was built in 1923. The lot is not inside a FEMA Special Flood Hazard Area. NYC municipal records show 10 open building violations for this lot as of 2026-07-05.

Property facts

BBL	1015160030
Borough	Manhattan — Community District 8
Neighborhood	Upper East Side-Carnegie Hill
Zoning district	C1-7
Building class	O5 — office building (what’s a building class?)
Land use	05 — Commercial & office buildings
Lot area	5,035 sq ft
Floors	6
Residential units	1
Year built	1923
FAR	5.4 built · 6.02 max residential · 2 max commercial Learn: What is FAR?
Flood zone	Not in a FEMA Special Flood Hazard Area

Public records

10 open Department of Buildings violations
0 open ECB (OATH) violations
0 open Housing Preservation & Development violations
Façade safety filing status: SWARMP (latest filing 2022-02-01)

Violation counts as of 2026-07-05.

Absence of a record means none on file in NYC municipal records — not a certification of compliance.

The complete dossier also covers:

Buildable floor area (residential & commercial)
Recorded ownership & last sale
Recorded mortgages & open debt stack
LL97 carbon exposure by compliance period
Flood coverage percentage & base flood elevation
Climate projections for this lot
Open permits & construction pipeline
Distress signal convergence
Air rights & transferable development rights
Comparable sales (Pro)

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Data: NYC municipal records (Departments of City Planning, Buildings, Finance) and FEMA. See our sources and methodology. Data as of 2026-07-11.